Synthesis and X-ray structure of bis-[Re2(CO)9] complex of 3,3′,4,4′-tetramethyl-1,1′-diphosphaferrocene functionalised complex as a potential radiopharmaceutical and metallocarbonyl marker
3,3',4,4'-Tetramethyl-1,1'-diphosphaferrocene reacts with two mote equivalents of [Re-2(CO)(10)]/Me3NO to afford bis-[Re-2(CO)(9)] complex 4. The X-ray structure of this complex revealed equatorial Re-P bonds. The same reaction with a functionalised derivative of 3,3'4,4'-tetramethyl-1,1'-diphosphaferrocene 1b afforded N-succinimidyl ester 2, potential reagent for introduction of the large amount of radioactive rhenium into target-specific biomolecules. (C) 2002 Elsevier Science B.V. All rights reserved.